Struct TimingHistogram 

pub struct TimingHistogram { /* private fields */ }

A histogram for collecting timing distributions.

This provides Prometheus-style histogram buckets for aggregating timing data across many requests.

Example

let mut histogram = TimingHistogram::with_buckets(vec![
    1.0, 5.0, 10.0, 25.0, 50.0, 100.0, 250.0, 500.0, 1000.0
]);

histogram.observe(42.5);  // 42.5ms response time
histogram.observe(150.0);

let buckets = histogram.buckets();
let avg = histogram.mean();

Implementations

impl TimingHistogram

pub fn with_buckets(bucket_bounds: Vec<f64>) -> Self

Create a histogram with the given bucket upper bounds.

Bounds should be sorted in ascending order.

pub fn http_latency() -> Self

Create a histogram with default HTTP latency buckets.

Buckets: 1ms, 5ms, 10ms, 25ms, 50ms, 100ms, 250ms, 500ms, 1s, 2.5s, 5s, 10s

pub fn observe(&mut self, value_ms: f64)

Record an observation.

pub fn count(&self) -> u64

Get the total count of observations.

pub fn sum(&self) -> f64

Get the sum of all observed values.

pub fn mean(&self) -> f64

Get the mean value.

pub fn buckets(&self) -> Vec<TimingHistogramBucket>

Get the bucket data.

pub fn reset(&mut self)

Reset the histogram.

Trait Implementations

impl Clone for TimingHistogram

fn clone(&self) -> TimingHistogram

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TimingHistogram

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TimingHistogram

fn default() -> Self

Returns the “default value” for a type.